Draft appliance.



H. P. PETER'SEN. DRAFT APPLIANGB.

APPLOATION IILED 1320.6. 1912 1,073,516,

Patented Sept. 16, 1913.

2 SHEETS-SHEET 1 I 5513 n/l/f n!! 'W/Ml H. P. PETERSEN. DRAFT APPLIANGB.

APPLICATION FILED DBC.6,1912y 1 ,073,5 l 6. Patented Sept. 16, '1913.

2 SHEETS-SHEET 2.

@Xu/tumbas lower plates, and

f irri HANS '.P. PETEBSEN, 0F SOUTH TACOMA. WASHINGTON.

DRAFT APPLALNGE.

lineare.

Spestimation` of Letters Iatent.

Patent-ed Sept, 16,1913.

Application tiled eccmber S, 1912. Serial No. 735,346.

il) all whom r may Concern.'

lle it known that l, Hass P. Pnreae'nx, a subject ot the King' ofDenmark. residingr at South Tacoma. in the' county ot Pierce and Stateot lll'asnij iron. have invented certain new and useful lmproi'elnentsin Draft AppliancesT of which the following' a specification.

rl'his invention relates to improvements in draft appliances for railwaycars, and particularly to draft bar Connections.

An object in 'iew is the facilitating of the application of the draw bartothe 'draft beam connections and the eflicient locking of the parts intheir given positions, While providing for the retpiisite reciprocal andlateral plav et the draw bar.-

`With this and further objects in View, as will hereinafter in partbecome apparent and in part be stated, the intention comprises thecombination with draft beams, of -a draw bar adapted to extendtherebetween, stops connected to the draft beams and surrounding thedraw bar, follower plates carried by and movable along the draw barbetween the stops. springs pressing` the plates against the stops, and adetachable locking sleeve retaining; the draw bar against release fromthe follower plates.

The invention further eoinprehends the etmibination. with draft beamsand cross stops. oli a draw bar extending between the draft beams andpast the stops. follower giilates carried by the draw bar. spacingsprings engaging the follower plates. a shouldered sleeve adapted toretain the draw bar against displacement relative to the fola lockingsleeve detachably engaging' the draw bar vtor retaining the firstmentioned sleeve in position.

The ingention further comprehends certain` other novel constmietions.combinations and arrangements of parts. as Will be hereinafterdeseribedand claimed.

In the accompanying drawing: Figure l is a longitudinal7 verticalsection through draft apparatus embodying the Vfeatures of the presentinvention. l-=`i is an inverted plan View thereof. Figs. 3., fl, and Gare transverse., *vertical sections taken on the planes indie-atedrespectirely by lines tl-3, eifel, 5 5 and tlw et Fig: l and lookingrespeetirely in the directions indicated bj.' the arrows. Fig 7 is anend View of the i,

oeking sleeve detached. Fig. 8 an end rienv or `the draw bar detached.the sleeves being' omitted. Fig. 9 is a longitudinal. rc1'- tical,central sectionthroi -'h a u odilied embodiment of eouplervbar and locReferring; to the drawinghy indicates the ooring of the superstructureof a car which may be ot' anY tjfpe and provided with the usualsub-structure, not illustrated, and with the usual draft beam. not shownwith which latter are connected the draft sills 2.l 2, which ma): bedisposed in conventional arrangement relative to the draf-t beam andbody bolster, the latter also not. being illustrated. The beams 2 arespaced apart and are connected at various points along their length bycross webs forming` stops 3, .3. The outermost stop is preferablydisposed immediately in the rear of the butler block l and consistspreterably of cross plates 5, 5 one haring its ends fixed to therespective sills 2 at their lower 4edges and the other haring its endsfixed to the sills 2 at their upper edges, and each beingY bentintermediate its ends toward the other and' connectedbiY spaced aps ormetal strips-6, 6 haring their .ends xed to the cross plates 5,theplates 5 and 6 thus forming a rectangularly inclosed space through whichextends `the draw |bar Y which isI preferably rectangular in crosssection tin'oughout that. portion of its length extending through theopening between the plates and 6. Each of the other tivo stops is madeup ol upper and lower cross pieces or plates-connected at their ends tothe respective upper and lower portion of the beams :2, and the crosspieces S being. in turn connected by connecting plees 9, thelatterbeing' arcuate in form and conforming to curved portions of thepieces S, whichv Curved portions, Withtlie'plates or connecting pieces9, provide a circular closure throughwhich'the dral bar T entends, thedraw bar being' cylindrical throughout those portionsv ot its lengthextendingY through the stops 3, in the rear ot' the outermost stop 3.The cross sectional arca of thc dranv bar reduced just inside theoutermost stop forming' an abutting' shoulder l0. and the portion of thedra-iv bar in the rear of the shoulder lt?. beginning "at the shoulder.is cylindrical and of uniform diameter for a length .snllicieut forextending' from the out ermr'st stops 3 to the intermediate stop Il. andthere-at the dra'rt ba' i' is formed with 110 an annular Shoulder 11 andextends thence Iarwardly in the form of a' reduced cylinder. l

An annular sleeve 12 surrounds the draw7 bar 7 in the rearl of andextending from rthe shoulder 11 to the rearmost stopl 3, the

-annular shoulder 13 facing forwardlyv at one side of the intermediatestop 3 and the annular shoulder 14 facing rearwardly at the other sidethereof.

Adjacent the rear end 'of the draw bar 7 the bar is formed with anannular groove 15 and longitudinal slots 1G, 1G extendingl from thegroove'to the end of the draw barA` the slots 1G being of a widthsui'hcient for leaving radial lugs or projections 17, 17, in thepreferred .embodiment each lug l17 being 0f a width circumferentially ofthe draw bar equal approximately to the width of each groove -16circumferentially of the draw bar.

Mounted on the rear end portion of the .draw bar 7 is a retaining orlocking sleeve 18 which has its free end portion of a diameter adaptedto loosely fit the opening formed through the rearmost stop 3, suchdiameter being sufiiciently great for providing a circumferentialshoulder 19/at the forward end of the sleeve 18 outstanding radiallyfrom the sleeve 12. The sleeve 18 is preferably taperedrearwardly orinwardly as at 20 so as to facilitate reciprocation through the stop 3.`The bore of the sleeve 18 is substantially equivalent in diameter to thediameter of the rearmostI portion of the bar 7 so as to surround thesame, and the sleeve is provided with radially inwardly extend ing lugs2121 corresponding in width ap proximatelyto the dimensions of the lugs17 and of'a length approximately the same as the width of the groove 15,said lugs being thus adapted to snugly fit the groove and at the sametime to be free to revolve thereinj/Tlius in applying the sleeve 18 tothe rearv end of the draw bar 7 the sleeve may be projected axiallv ontothe draw bar Wit-h the lugs 21 disposed to travel longitudinally of thegrooves 16 until the lugs strike against the forward shoulder of thegroove 15, wh'ereat the sleeve is adapted to be revolved until the lugs21 are alined axially with the'lugs 17 and are thereby locked againstlongitudinal withdrawal from the draw bar. To prevent the sleeve 18 frombecoming accidentally revolved to a position of registration between thelugs 21 and the grooves 16 a pin 22 is passed through the taperedportion of the sleeve 18 and through the rear end portion of the drawbar` the sleeve and draw bar 'being formed with apertures adapted toregister when the lugs 21l are alined with and forward of the lugs 17.The pin terminates inside the longitudinal planes of the greatestdiameter of the sleeve 18 so as to be free to readily reciprocatethrough the rearniost stopy Innnediately in the rear of the outermoststop 8 a follower block 28 is mounted on the larger cylindrical portionof the draw bar 7 and immediatelyv in front of the intermediate stop 3is a similar follower block 2t, each` of said blocks being preferablyprovided with a. sleeve1 extending toward the other along the draw barfor guiding and confining the respective parts. Surrounding the draw barbetween the follower blocks 28 and 21 are nested coilsprings 25 and 2Gdisposed' to have theirends engage the respective follower blocks, thefollower block 2l being disposed to engage the shoulder 13 of sleeve 12and the follower block 28 being disposed to engage the yshoulder 10 ofdraw bar 7. Surrounding the sleeve 12 are follower blocks 27 and 28similar in construction and arrangement to the blocks 23 and 21, block27 engaging the shoulder 1-1 of the sleeve 12 and the block 28 engagingthe annular portion or shoulder 19 of sleeve 18. Nested coil springs 29and 30 are disposed between the follower blocks 27 and 28 and have theiropposite ends engaging the respective blocks.

As best seen in Figs. 8, 4 and. the stops constitute guideways for therespective parts of the draw 'bar 7, and the openings --formed by thesaid stops are preferably slightly enlarged laterally, as indicated inthe last named figures, for permitting a cerain amountof radial swing ofthe draw YLT.

In operation, draft stresses are delivered from the knuckle through thebar 7 to the sleeve 18 and thence to sleeve 12 and from the shoulder 19of sleeve 18 to the follower block 28 and thence through springs| 29 and30 to follower block 27 and to the interme diate stop 3, While at thesame time a draft stress is transmitted also through the sleeve 12 tothe shoulder 13 thereof and thereby tothe follower block 24 and thenceto ,the springs 25 and 26 and to the'follower block 23, which deliversthe stresses tothe outermost .stop 3, thestops delivering. the draftstresses yto the draft beams 2 and thence to the car structure. lThebuing stresses delivered to the draw bar and the compression stressesalso delivered thereto are'transmitted through shoulder 10 to thefollower blo-cli 23 and thence through the springs 25 and 26 to followerblock 24 and to the intermediate stop 3, such stresses being at the sametime also transmitted from the shoulder 11 to the sleeve 12 and thencethrough said.

1n Fig. 9 l have illustrated a modified embodiment in which the draw bar7 is provided with a locking sleeve 1.8, the draft bar and sleeve beingsimilar in construction and arrangement to the draw bar 7 and sleeve 18but differing therefrom in that a plurality of the locking lugs arrangedin longitudinal series is provided. In this embodiment the rear endportion of the draw bar 7 is provided with spaced annular grooves 15 anddiametrically oppositely disposed longitudinal grooves 16 connecting thegrooves 15 and extending from the rearniost grooves to ,the extreme endof the draw bar, the grooves 1G leaving radially disposed lrciting lugsbetween the end of the bar and the first,- groove 15 and between eachtwo of the grooves 15. The sleeve' 18 is provided with radially inwardlyeX- tending arcuate locking lugs 21 disposed at diametrically oppositepoints of the bore of the sleeve in position for being adapted to slidelongitudinally within the grooves 1'6" and then to be movedcircumferentially by a rotary movement of the sleeve 18 to a positionaxially alined with the lugs of the draw bar, whereby the sleeve '18 isadapted to be locked onto the draw bar. A pin 22 is disposed to extendthrough a portion of the sleeve and draw bar to prevent any relativerotary movement of the parts tending to allow the locking lugs of thesleeve to move into register with the grooves 16.

Having thus described the invention, what is claimed as new is:

1. ln draft apparatus, the combination of a draw bar having a pluralityof shoulders, a draft stress transmitting element engaging one of theshoulders, a sleeve mounted on the draw bar and engaging another of theshoulders, and formed with extension means providing a shoulder, stresstransmitting means engaging the last mentioned shoulder, and a sleevedetaehably connected to the draw bar in position 'for retaining thefirst mentioned sleeve thereon.

2. In draft apparatus, thecombination, with draft beams, of `stopsextending between and connecting said draft beams, a draw bar extendingthrough said stops, said draw bar being formed with a shoulder adjacentone of the stops, a sleeve mounted on the draw bar and formed with ashouldered portion adjacent another of the stops, means for retainingthe said sleeve on the draw bar, andlstress transmitting means adaptedto engage the shoulder of the draw bar and the shouldered portion of thesleeve.

3. In draft rigging, the combination, with draft beams, of cross stopsconnecting the cross plates and spaced connecting plates connected tosaid cross plates, the draw bar extending through said stops between theupper and lower and spaced plates thereof, and means for transmittingstresses' from the draw bar to the stops.

4. In draft rigging, the combination, with same and each comprisingupper andlower cross plates and spacedl connecting plates connected tosaid cross plates, the' draw bar extending through said stops betweenthe upper and lower and spaced p'latesvthereof, and means fortransmitting stresses from the draw bar to the stops, the saidspacedconnecting plates' being spaced .a distance sufficiently greaterthan the cross sectional dimension of the draw bar for' allowing radialswing thereof.

in presence of two Witnesses.

HANS P. PETERSEN.

Witnesses A. UNDERwooD. G. F. GRIEB.

same and each comprising upper and lower draft beams, of cross stopsconnecting the I1; testimony whereof I affix my signature; .r

